Hat-pouncing machine



Aug.26,193o. y

HATv PoUNcING MAcH'NE J. F'. DoRAN 1,774,173

Filed June 29. 1922 8 Sheets-Sheet 1 Ill y I ,z ii v Af l Y Y 4e Amrum 73 Aug. 26, 1930.

J. F. DoRAN A 1,774,173

HAT POUNCING MACHINE Filed June 29. 1922 esmas-sheep 2 INVENTOR www am ATTORNEY Aug. 26, 1930.

J. F. DoRAN '1,774,173 HAT POUNCING MACHINE Filed June 29. 1922 8 Sheets-Sheetl 3 ATTORNEY k Aug. 26, 19311.

J. F. DoRAN ,774,`173 HATV POUHCING MACHINE Filed June 29. 1922 8 Sheets-Sheet 4 22 .'"Ilnmill m;

Aug.r26, 1930.

HAT PbUNcING MACHINE:

Filed June 29. 1922 8 Sheets-Sheet 5 /5/ 7 ATTORNEY l J. F; boRAN 1,774,1'73

Aug. ze, leso. J. F. DQRAN y 1.774,173

lHATNPoUNcIm-r MAQHINE y Filed June` 29. 1922 8 Sheets-Sheet 6 @11.26, 1930. J. F. GRAN f 1,174.11:-

Hn Pouncme u cnzun Y 8 Sheets-Sheet -7 'Filed June 29. 1922 MMX Mfr,

mi" -PouucING MACHINE 'man June 29.- 1922 e sheets-sheet a n 351; Gte/one? -latentecl tig. 2.6,

l UNITEDSTATES PATENT'GFFHCE,

objects' 1' above nature which isjparticularly adapted to operate efficiently and more particularly,

" JAMES F.- Donau,

or DANBURY, coivNEofiicUT HAT-Poirinorne MAC-Hina Application lfiled June 29,

relates yto machines forV papering hat bodies and,-

to such machines as op-v f the hat andv This invention pouncing or sand erate on the brim portion o which are commonly vknown as hat briml p the hat brim through between-fthe rtwooppouncing machines. Y v

Oneof the objects thereof yisto provide a machine of theabove nature which capable of turning out al an efficient and thorough manner.

are to vprovide a machine of the reliably on hats o varying thicknesses and qualities of felt and which performs the 'required operations on great rapidity and accuracy.

a hat brim with c Anotheriobject istogpro-vide a machinevof the above nature which requires ja minimum degree of attention during operation'and is. dependable under the varying j thoroughly Y conditions of practical use. Other objects are'to provide a machine AofathgJ above na,v ture whichis characterized by` features of f strength and durability, which issimple tov n @ther objects will be inpart meet the various vrequirements of practical operation. obvious or in part poi'ted out hereinafter. (gf Theinvention accordingly consists in the features of construction, combinations o elements and arrangement-sof parts as will operate and readily adjustable to be exemplified inthe structure tov be ,here-if inafter set forth and theV scope4 Vof the application of which willvbe indicated in the following claims. y

In the accompanying drawings, are shown. one or `more .ofl various embodiments of the. several features o invention, f A Y, n .v

Figure 1 is a perspectivegview of an assembled brim-pouncing machine, certain parts being shown diagrammatically in order not to encumberv the drawing.

in which possible Figure 2 is a partial sectional velevation showing almeans of mounting onthe frame of the machine and of driving a pair4 of arms through whose'movements the pouncing operation is performed upon the hatv brim, a method of applying an abrasive covhigh grade of workv in f Other the ends of thetwo arms.l

Figure 10 f thisV 1922. serial in. 571,609.

ering to the' operating faces y of.` the arms being showndiagrammatically at the left.

y'Figure 8 isa detached planview of-.one of the arms shown in Fig. 2, VtogetherV with a vart'ialplan view ofa method for 1A-feeding erating arrns'shown-inFig.Y 2i" Figure Lfis a`,detached upward plan view of the left-hand portionof the 'lower arm of Fig. 2, the abrasive covering being omitted to bring out theconstruction.' vi Figure 5- is a side`r elevation4 of thestruc-i ture shown in Fig. 4. f

Figure 6 is a vdetachedhside elevation, partly insection, of the'fbr'im-feeding device shown in plan inF ig. bringing *outf its drive. and mou ting upon the@ machine frame. t -f Figure Tis machine', v parts being show the construction vof .an

a' partial perspective ofthe 'I automatic stop mechanism for arresting th'efaction'of the l machine.

`Figure 8 resentation lof the automatic stop mecha-nismy shown in position :on the machineiin Fig'. 7;'-` detached endV viewof-ithe looking'vfrom the front'lof` L I Figure A9 is s a twoxmoving karms thev machine showing1diagrainmatically a method of applying abrasive `coverings to is a detached in section and certainzpartsbeing omitted, looling from the'frontfof` the'machine show.-- ingfthe mounting of a inechan-ilsnifor feed-` ing an abrasive strip onto theoperating surface of one ofthe movingarms, i l' diagrammatically in Fig. 1. c j

Figure 11 isa partial sectional elevation viewedfrom the Vright of shown at the right. y v y Figure 12 is a' drag'rammatic view showcut away/.to 'clearly'.

is a Adetached diagrammatic'rv-,ep-I y end'view, partly as rshown?.

Fig/10, certain, parts Vbeing cut away and zparts Vbeing -v omitted to clearly show the construction, a' 7 mechanism for driving the feedvrollersbeing 95 ing thefeed drive mechanismrof Fig. 111

viewed from theright of Fig; 11.

Figure 13 is a diagrammatic 'plan'fview of a connecting gearing associated 'with' A`the l ULI rear end of the in Figs. and 11.

Figure 14 is a plan view of a means of supporting the roll of abrasive material as indicated diagrammatically in Fig. 1.

Figure 15 is an end elevation, partly in section, viewed from the lower end of Fig. 14, certainassociatedparts being added diagraminatically to show their relativerpositions.

Figurel is a viewsimilarto Fig. 10 showing a possible modification of the structure shown in Fig. 10.

Figure 17 is yal partial sectional elevation of one of the rolls indicated diagrammatically in Fig. 9, showingfa methodof mounting the same.

Figure 18 is an end view of the left side of Fig. 17. f

Figure 19 of F ig. 'l7, certain'parts. being omitted and certain parts being .added to more clearly bring out the construction and operation.

' Figure 2O is a partial sectional plan View v of the right-hand side of Fig. 17.

Figure 21 is a view similar 1n Fig.

shown in Fig. 19.

Y viewed from the left of Fig. 21.

Figure 23 is a partial sectional `elevation of one of the rolls shown diagrammatically lin Fig. 9r showing a means of mounting the sameand parts ing same. A y K Figure 24 is an end view from the right Fig. 23, certain parts being cut away 'to of the mechanism for drivigure 25 isa view similar to that shown in Fig. 24, parts being cut away and certain parts being shown which are Aomitted, in Fig. 24. I

Figure 26 is a certain parts being cut away.

Figure 27 is a perspective of the construction shownin Fig.,26, certain parts being rFigure 28 is a view from the right of Fig. bringing out more clearly the driving mechanism, certain parts being shown only diagrammatically to avoid confusion.

Figure 29 is a partial plan view of the driving mechanism shown in Fig. 28.

Figures 30, 31, and 32 are views similar to that shown in Fig.v 28, showing various possible modifications of the driving mechanism; and '1' Figure 33 is a perspective of an assembled machine showing modifications of certain parts thereof different from those shown in Fig. 1, certain parts being shown diagrammatically.

feeding mechanism shown is an end view of the'right sidel partial sectional elevation' viewed from the left of Fig. 25,

Similar reference characters refer to similar parts throughout the several views of the drawings.

Taking up first the general description of the machine shown in perspective in Fig. 1, it is driven through the rear horizontal countershaft y10, as by belt from factory drive, the'shaft 1 0 being mounted in bearings 11 on the rear of the frame 1. A pulley 12 'fast on the shaft 10 drives a vertical double eccentric shaft 86 through a belt 14 and pulley 19. Through a pair of link box connections 56 sliding on a pair of arms 506 the rotation of the shaft 86 causes the two arms 7 and 8 to'oscillate about the vertical tubular shaft 71 on which they are rotatably mounted. p

Mounted upon the ends 8 are a pair of pads or cushions 15 and 16 over which an abrasive strip, as of sand paper, is gradually fed. The hat to be operated upon is indicated in dotted lines at 90 having va brim 91 which is adapted to be inserted between the oscillating pads 15 and 16. The hat 90 is supported on the upright arm 18 and its adjustable flange 18a, or on any other suitable supporting means. The arm 18 is free to oscillate on its pivotal connection 22 and is guided in its proper movement forward and back toward the pads 15 and 16 by the side flanges of the support 22 and bythe rod 23 and is normally drawn toward the pads by a spring' 28a.

. 1t will be understood that the hat while being pounced is stretched over a hat block recess in its base into which enters the upper end portion of the arm 18 above 'the ange 18a, the base of the hat block about the recessbeing adapted to rest upon the flange 18a, all as will be clear from the drawings. It will be seen that the mounting for the hat which is herein disclosed is particularly advantageous, allowing the hat with its hat block to rotate freely about the upper end 18 and permitting the hat free in and out swinging movement about the pivot 22 toward and away from the pads, this movement resulting from the well-known oval shape of the rotating hat. The rod 23 helps to guide the hat in this oscillating movement toward and away from the pads, and if desired, this rod may be locked by the set screw shown on the frame of the machine to hold the hat outwardly against the action of the spring 23a when the machine is not in use.

, From the small pulley 13 on the countershaft 10 through a belt 24, a pulley 25 on the small countershaft 21, and a vertical belt 28, a pair of feed rollers 26, shown more clearly in Fig. 7, is driven. The brim 91 of the hat 90 is inserted between the rollers 26 and the of the arms 7 'andV 'aC-tion' of the rollers draws' the hat brim through between ythe Voscillatingpads and 164 and the pouncing operation is performed upon the upper yand under sides of the brim Iby the abrasive action y of the sand paper strips, tliepads 15 and`16 bearing together with the required amount of pressure. v.To interrupt the drive and arrest the operation of the entiremachine,

levers as'32 and 33 with suitable connections, operates a belt-shifting device to shift the belt driving the countershaft 10 toa loose 1 pulley.. Y

` Taking upv now the operation of the chine more in detail, with reference principally to construction and. operation of the oscillating pad-arms 7 and 8 and connections, the double eccentricshaft 86 driven, as mentioned; though the pulley 19 is rotatably mounted inlthe bearing boXes and46 and the downward pressure on the face "of the boX 46'is' lessened by use `of a ycompression bail bearing 50,. Rotatably mounted on the double eccentric shaft 86' are a pair of lating and reciprocating link'bearings, each of which consists of a body 56 Vand caps 55 and 57, one bearing being at right angles to the otheron the eccentric shaft 86. '1n Fig. 2 the eccentric bearings operating the oscillating arms I 55 and 57 removed," and-the first lower tubular arm 506 is shown in section to clearly bring,v

out the construction. Referring'to the lower oscillating arm 8 and .its'fconnections which are substantially the same as those of the upper varm 7, the tubular arm 506 is shown fitted into a rear tubular extension of the arm-.8 and held rigidly thereinby any suitable means, as by a pin 58. kThe other end of the tubular arm 506 isrprovided with a bushing 59 through'which grease may be l. sage 8a to lubricate the bearing shaft' ofthe' fed 'from a grease-cup 60 to the linterior thereof to lubricate the sliding bearing sur' face'of the arm 506 through the openingsv 61 therein andalso to lubrieate the bearing of the shaft 86 and to supply the felt filled reservoir lchambers 56a in the' boxes 56 with reserve lubricant through "a passage, not shown. Lubricant may alsopass y terior ofthe hollow arm 506 through a pasarm 8`which vwill be hereinafter oscillating The same fastening bolts 62'secure described.. both Vcaps55 and 57 to the main.

the caps and bodyare providedas at 66v in 3 so that wear may be quickly and easily taken up. The link boX is free to slide upon the arm 506 through the lateral vbearing between the cap 55 and the body 56 and the shaft 86 is free 'i bearing between thecap"57 and the body 56.

Thus, as the eccentric shaft 86 revolves it t a hand lever 31 may" be providedV which, through 'suitable cross rna- Figs. 2 and 3 showing the before .a collar@ which is `secured to will cause the armand 8 are shown witlithe caps` *extension of th hat. brim. from the 'ini body 56 ofl the link boXes,and laminated shims between.`

.normal weight of the arm to rotate in its vertical.

gives the link bearingsl V56 a combined oscillating and reciprocating motion.v .The reciprocating motion is taken up by the link bearings sliding on the tubular shaft 506 oscillating movement is transmitted through ythe arms 506 to theV arms -7 .and 8 'which oscillate aroundv the (axis ofa stationary tubular bearing s in place in the frame'lof the -machineby The bear suitableset screws 71"" and'A 71; ingsy inthe arms 7 and8 about the shaft 71 are bronze bushed andthe shaft bearing71 is of hardenedandgro'u'ndv tool steel, and is' automatically lubricated through 'the opening 8a from the lubricating chamber within the tubular arm 506, as before described.

' lassing through the center of the hollow bearingy shaft 71 is va rod 78 connected at its'l'ower end with a mechanismV which will be hereinafter described and guided in Vits and the y haftj71. This shaft held" sak central movement by a vbushing '17 5 fitted' 'f into the end the frame 1 VPassing through the arm 7 (see Fig. 1 u p 72 ofthe and an upper enlarged portion of the fhollowshaft 71 and by't rod 7 8 is a pin 65 vwhich'fits snugly into both 'l 7 andthe rod 72 butfpasse the yarm s freely through an elongated slot 71C inthe bearing c shaft 71 so that any upwardmovement of connectionadjustable collar,V 7 9, and a second compression spring 8.0. Assuming that little or no 'upward pressure applied to the arm'7 through the as when operating upon 7 away from the arm Icig.- 1, on theilo'wfer-H 7 8 is a compression?,

spring 76, an adjustable collar 78, a secondk therev l is rod 73, the arm 7y will drop due to its weight until the pads and 16 come into Contact to bearagainstthe' hat bodies this weight bearing v pressure f for On some provides sufficient iis' pouncing ;iotliers require more pressure than isg-iven bythe weight' of the arm 7 Aand others less, and the spring able collar 78 are 4provided so that byadf justinent of the latter, the spring 76 may be compressedmore or less and the necessarypressure may be added to the weight of the arm 7 .y Where it is' necessary that less weight be provided rthan is given by the 7 and its parts, the adjustable 'collar 78 is so set that no action comes from the spring 76 and the adjustable collar 79 is ysetso that when the arm 7 drops, compression will be put on 76 and the adjust?.

the spring and thus decrease the pressure given the brim and at the same time the feed on the hat brim due to the ynormal weight rollers 26 are automatically separated. Pivofthe arm 7. 4 otally fastened to the frame 1 as at 7182l is i rIaking up now the operation of the brim a swinging arm 718 through which freely feed rollers 26, they are driven, as before passes the upright rod 73. Adjustably fas- 7 mentioned, from the vertical belt 28 Fig. tened to the rod 73 by the arm 718 is a collar 1), which belt engages the pulley 128, shown 728, and mounted on the rod below the arm clearly in Fig-6. Referring principally to 718 is a slidable collar 7281. Between the Figs; 8 and 6, the pulley 128 is fast on the collar 728a and the bearing 730 which is seshaft which drives the lower feed roller 26 cured to the frame 1 of the machine and 7 feed roller26 is pivoted as at 132 and by arm 718 is not restrained in its upward 5 and through a pair of bevel gears 127 prothrough which the rod 73 slides f reely is a vided with a guard 130 the upperfeed roller compression spring 729. The spring 729 is 26`is driven at the same speed. The bearmuch stronger than either of springs 76 or ing sleeve 131'of the shaft driving the upper 80 and is suliiciently strong so that if the adjustment of the hand screw 129 the commovement the spring 729 will overcome the pression in the spring 133 may be adjusted weight of the arm and its parts and also to regulate the bearing pressure between the any force that is directed against it by the two rollers 26. The feed rollers are mountspring 76. Connected to the bottom of the ked upon a bracket 134 adjustably secured lever 718 is a link 719 the other end of cf to the frame 1 by suitable bolts as 179, which is fastened to a foot lever 48 swiveled and the rollersmay be adjusted vertically to the frame 1 at as 720. The spring 729 by means of a set screw 126 and circumthus tends always to raise the rod 73 toferentially by the free bearing of the lower gether with the arm 718 and the foot lever bearing sleeve 131a in the bracket 134 to 48 through the link 719 and, if unrestrained, ce insure their-proper alignment with the reholds the arm 7 in raised position away ciprocating pads 15 and 16,` and they are from the arm 8, as shown in Figs 1 and 7. locked in position by a set screw 135. rlhe Freely mounted in the bearings 716 and kposition of the rollers 26 and their mounting 713 which are fastened to the frame 1 is a upon the machine may be better realized rod 714 which, by action of a torsion spring by reference to Fig. 7. 715, always tends to rotate clockwise (look- From the description thus far it will be ing down upon the same) and is restrained understood that the blockedl hat 90 (Fig. in this movement by a stop pin 717 secured 1) is supported upon the rod 18; the brim to the bearing 716. The lower end of the 1 is grippedV between the feed rollers 26 rod 714 has an eccentric point 714a which 10G and drawn through between the abrasive rests on top of the arm 718, as shown in Fig.

surfaces on the pads k15 and 16 mounted 8, and thus normally holds it down against upon the yends of the two arms 7 and 8, the action of the spring 729, in this position which oscillate in opposite directions about the arms 7 and 8 and the pads 15 and 16 y ktheir bearing shaft 71. An upward movebeing together. Adjustably secured to the ment of the arm 73 will separate the pad top of the rod 714 is an arm 712 extending faces to permit the removal or insertion of at right angles thereto. Freely mounted on a hat brim.l Certain advantages of this ina stationary arm 711 secured to the frame 1 vention may be realized by the provision of is a ratchet 709 in which there are one or manual means which will be hereinafter more openings 708 to receive pins 710. The described for bringing about this separation ratchet 709 is revolved by the action of a of the operating pads 15 and 16. However pawl 707 through a link 706 and the movethis necessitates the attendance of an operment of an arm 705. The arm 705 is mountator at all times to arrest the operation of ed freely in a stationary bearing 703 secured l the machine when the hat has been suflito theframe and has mounted upon it an H5 ciently pounced. Also, when the pouncing adjustable collar 704'and a spring 702 tend- `operation has been finished and the pad ing to pull the arm 705 to the left until faces separated for easy removal of the hat collar 704 strikes the bearing 703. brim, the `brim is still ,pressed by the feed On the hub of the lower revolving feed c rollers 26 and it is Vnecessary to twist the roller 26 is a cani projection 26a, also shown 120 hat and to wait until the brim is fed out of in Fig. 6. `With each revolution of the feed contact with the feed rollers before it may roller 26 the cani surface 26EL pushes the rod be removed. Considerable time is thus 705 to the right and through the link 706 wasted and there is a danger of wrinkling and the pawl 707, the ratchet 709 is caused y the brim by twisting the same and having a to revolve; this very slowly as the feed rolm5 damaging crease rolled into it. lers travel at a very slow rate. Any amount Referring to Figs. 7 and 8, there is shown of rotation given the ratchet 7 09 with each a device by means of which the operation revolution of the rollers 26 may be reguupon the hat isy automatically stopped after lated by adjusting the position of the cola predetermined amount of work has been lar 704. The pins 710 revolve with the as before described. l the machine throw-off occurs over the edge,l at which timethe lever` dly by thejactionratchet 709 and will contact withthe ,arm

715 which causesv the across the top ofthenlever 718 and is made free to move upwar of spring 7 29, and` the.l main oscillating pad fromk arm 7 isA also moved upwardly the arm 8 through the' action of away `the rod 73 will run before amount of movement of the ratchet 709 with each revolution of thejfeed roller 26 vor by thesetting of the pin l leral holes in the ratchet 7 09 tofreceive more rod 714 from 30 iiange or top of the mainoscillating arm -rod705 and contacting with -lar 701 thereon. -forms a camsur right vthan one pin 710 this actionmay or delayed at will and the predetermine amount of work for thef hat may be arranged.

If it is desired lever L18 to straining eccentric point 714a thefact that the tactj with the V'lever 712 would vprevent the swinging over the top of the arm 718 by the actionA of its Vspring 71 Again, the feedl rollers running, and with no'provision made the ratchet would continue to move aroundand there would be no way of being sure that theratchet timing would be proper' to? give the predetermined amount Vof work at the next setting. To overcome for easy insertion and removal of the hat brim there is provided'afbell crank-rocker arm 700which is pivotedftothe lower, roller casting at 161 ,(see Fig. 6).y with one arm extending `upwardly and 'restingi on Ythe and another-armv forking around theslide the' fixed coll Apart 'of thisarm also face 7 00a with a bearing surface 26h on the .bearing sleeve 131 of the upper feed roller 26 ('see alsoFig. 6).

When the upright restraining: arm v714 swings and allows the arm'718 toraise upwardly and with it the main operating arm 7 as described, the contactbetw'een'the lever arm 700fand the f arm 7 moves the arm this inV turn causes to the right and against the action of thespring 702 to the and thus throw the rod 705 outof contact Thus, any further actionof the cam`26a an the arm 7 05 is prevented while the. oscillat- 714 counter-` Q The length of time that this automatic the arm 712 and,.therefore,t yleverS is pushed 'downwar ywith itthe arm 4is determined .by the.

. the foot is removedV from'the lever 4 8 this i andwill contact to immediately start the is put yonby v729. Therefore,

throw-off pin 710 is in con- 26 i aref constantly lor a hollow pliable container with both difficulties and also to accomplishk the opening up offeed rollers 26 at theend ofy thelope'ra'tionf circumference ofthe inner portion f the hat, is less than thecircumference o f-the outer edge feed v'which 'contacts A'part that it with the rotatingfeedrollercam 26a.

` d ora ipad.--Where 4the unevenness is eXces-` l the v.ocillating arm 8 or while the pouncing ads are not, acting on thehat brim. At the Sametime the carn'f700 acts on the bearing 26bon the topfeed roller 26 and"causesjvtheY tact with 4the lower roller.

gives an 707 and the ratchet soy fark that itmovesibeyond contact with dly Aand ydraws 718 below the lowestfpoint on the-,rod 7 14' the` torsion spring715 imthe eccentric end 7111, kover against the restraining pinl 7-17k so that when point 714a will bei above with and restrainv the arm 718V from movving upwardly by the'action fof the. spring it vwillbe seen that bythe movement ofthe oscillating pad arm 7 upwardly the movement o ceases luntil the lever 18is pushed downwardly again when lanother hat. is placedin the machine to beoperated upon.

Turning nowtothe vmounting 15 and 16 on the ends of theoscillating arms 7 and 8, each pad ispreferably faced with :a -pliable material which may be woolor felt,

but I prefer to use an inflated padusinga Y 'liable container, as rubbery 'filled'. with air pad face fed. l :The of the hat the flexible. medium of the vacting over' which the abrasive strip'isvr brim;y that 'nearest the crown `lo and there is therefore `less surfaceto be pounced on the inner portion than on the outerportion o fthebrim 'In addition, .the

7 axis 7.1.aroundwwhich ther-pads 15y and 16 oscillate is r'urthenaway from the crown'of ,the hat thanffrom the outery edge vcfg-the brim .and thislcausesjthe front-,portionof the pad which -isin contact withlthe Iinner or ylesser brim surfacetooscillatea greater amount than the rear end of the pad which Iis'in contact with vthe outer or greater brim for this and to in- Y portion. To compensate sure'an evenpouncing-.of all parts of the brim, the working pad faces are made narrower in the clearly shown in Figs?) and 9, and ,practice has enabled the determination of the properktaper to push the slide rod 705 felt from the inner ing arm .7 is upwardor out of contact with Y ofthepads .i

water as.

er rollerv to be liftedfoutI of. feeding oo n- Y .7.5, Y:is sufficientthrough the action ofthe' pawl 00 f theratchet 709 ico frontthan in the rear, as Y portion near the crown y to the outer' edge and -it is forfthis reason in f is desirable to use a soft cushion viol - the pad; normally kept 1n the central padsl mounted will conform enactly to the uneven condipreferably to simply limit the movement of andv by the springs 554 the pad is position but Abrought into contact with it. Since ythe hat being Worked upon is kept I y1n position in relation to kthe frontv of the the hat and l d will rub against the Vcrown portion of eave a mark on the crown that injuresthe body. To overcome this diiiicul'ty I make usejof a protective shield 559, shown in Fig. 9. This shield 559 is pivoted to the stationary frame 1in any suitable 561, and when in use is swun of th against the back portion of the shield, which may either rest on the brim of the hat in the kposition'indicated in dotted lines, or which "'fwhichf performs on th "i500 bydavsimilar "of both sand "for, feeding v-the strips across the pad faces "l5 andfil'are substantially*identical Aand 26',`but I preferto provide Y offsand y' across fthe' surface `of the may have a restraining lug fora stop just efore it contacts with the brim ofthe hat. Various means may be employed for applying the abrasive covering of sand paper to the two resilient pads 15 and 16 and e'upper and under brim of the hat as thesame is fed therebetween by the rollers a strip or a roll 'paper for-each pad which is fed -be hereinafterA described a'roll 500 of abrasivematerial 'such Yasv sand ypaper held 'in position by anl arm 250. elow the operating pfad '16, is. suspended a similar roll arm250-A paper .rolls and the mechanism the pouncing operation up-Y padjby means to pad 15 upon l he mounting are shown only diagrammatically in Fig. 1.

`In Fig. 10 there is shown in enlarged detail a front end view of the sandpaper feeding mechanism shown diagrammatically in Fig. 1. `With regard to Fig. and also to Fig. 16, which will be described later, it may be here mentioned that since the pad is wider at the rear than at the forward end .and since the feeding mechanism now to be described is aligned with the sides of the pad 15, a true end view similar to those shown in Figs. 10 and 16 would show the rear portions of the pad and the sand paper feeding mechanism. These parts, however, have been omitted in Figs. 10 and 16 in order not to encumber the figures. The position of the roll 500 in Fig. 10 is different from that shown in Fig. 1 and its mounting in such position will loeV described hereinafter.

Referring now to Fig. 10 and to Fig. 11, which is a side view of the feeding mechanism shown in Fig. 10, there are shown the upper oscillating pad arm 7 and the flexible pad 15 mounted at its end. From the sandv paper supply roll 500 before mentioned the sand paper strip is 'fed between a pair of 'rollers 200 and 201 (Fig. 10) over the face of the pad 15 and between 202 and 203 after which These rollers 200, 201, 202 and 203 may be made of any material, but I a pair of rollers only will be Referring to Fig. 11, a casting 204 has at one end a downwardly extending lug 205 which is supported and pivoted on a pin 206, which pin in turn is mounted in the Hangs 207 upright arm of an angular by means of a bolt 211. The er arm of the angular support 210 (see Fig. 10) is adjustably secured to the pad arm 7 as by a bolt 212. These adjustments andffastening'means provide for securely supporting the casting 204 and its parts in any position in which it may be set in relasupport 210 as ktion to the angular side of the pad 15. 'Ihe it is torn Off.r

- rollers is necessary s' edges of `port freely a `A an unthr'eaded portion'which passes within and is freely supported-and heldin j ment in the tubular shaft 225. 'The screwi which passes freely overand holds infalignf' the frontand rearof itsline of contact with .'fforces the adjustable roller 203 abutting'the end of V`nut 229 the setting is locked as by a checkl nut'231. When it isnecessary tovinsert a new roll of paper, itl would be difficult to vLthread it through the deliveringbandwind'-,

ing sets of rollers if they remained under umana the frontV endifv of the since the pad15 is narrower at the front than at the rear andthe lengths of the paths of travel ofthe t'wfo the .sand paper strip between the rolls? 200 and 201 and the rolls 202 and 203 spring pressure, and it would'be almost-im- -1nust'beequal in order -toenablefthe strip '5 possible to be sure that the paper was set to pass properly'thr'oughbetween the rollers. "in at the proper vangle to feedthrough the v The raising of the front endfof thek rollers `rollers straight. v`Therefore,'it is`adv`antage- Y compensates for the dierence inthewidth ousv t0. hav@ the .rollers either 'undergno of the pad, front and rear. n Vspringtension or .undervery little spring Thev stud supports 213 and 214 for the rtension'at the threading operation so vthat shaft carrying the roller 202have their bear- `paper may be with ease moved forward or v ings in the upright ends ofthe casting 204. `sideways funtil itis aligned v and conforms The stud supports 215 and 216 forrthe roller `with'certain gauged points before the work- `ingprocess is thrown into action. Thesame tical adjustment of 203 have their bearings in the boxes 217 vand 218 which are slidably lmounted in the up- Yright ends of the casting 204.v The boxes 217 and 218 are held in place against any s sidew'ay movement bythe side walls of the vcasting 204 and against in and outj-m'ovement by the engagement of their upper circularl extensionsv 219 infinished openingszin the upright ends ofv the casting advantages are gainedwhen it is necessary to line up the paper should it start to feed out of alignment. j f f To provide for ,this and at the same timeI not interfere with the "proper spring'` setting as described above the arms 226 and 228 are pivoted on'the'pin 227.- The contact of Ithe faces rof the extension flanges-232a on the ro'ds226 and 228prevents" the upward movement of these arms around the pivot pin 22 and the extension of .theline of force tweenthe pivots 223'and 224 passing above the-pivot point 227 keeps the two" arms in set position. This may be aidedv some by the use of a small spring as 233. 'With-'little downwardl pressure,\however, the lost for-ce may befovercome andthe rods 226 and228 may be bent the pivot 227 to are two projections 220 which form bearings for the pins 221 andV they in turn suppair "of rock levers 222, f the lower arms of which contact with the'exten- Y lsion tops 219l of the boxes 217 and 218.V y'The upper armsform bearings for a pair of pins 223 and 224. To the pin 223 is freelyfmounted vone. end of'tubular shaftf225` and to the pin 224 is freely mountedv a rod 226. I The rod 226 isjoined by av pivot pin 227 to a rod 228 which is partly screwthreadedandv has s downward on av limiting position,"as whenjthe faces 2325` of theffla'ngesl contact.' j distance'between the pivots 223V and 224 and will eliminate the action' of thespring 233 on the crank` arms 222v and remoyepressure `from the rollers so that the paper may with" ease be properlyinsertedor set in position. The' rollersl A202 and 203 Iare'.` preferably Coi'l'ed upon thefrod geared together as 'by gears235jfas are the '228 kwithin the tubular nut 229 withone end j rollars 201 and 202 [by a' 'similar' pair'rof the tube 225v and' the gears, not shown. l l i 9 At the right-hand side of Fig.f1 1 and in y Fig. 12 is shown a mechanism forrevolving j of the ynu't`229of screw-threadedrod 228 the :the rollers 202and 203 and drawing a prespring.230 maybe compressed moreor less, determined amount of'sandpa'per acros'slthe and more or less pressurev is exertedy olface of the pad 1,5 each time the arm 7 moves .wardly on he bell crank arms -222 in toward the' arm -8 at thev beturn Aon the top roller stud support boxes l'ginning or end of the 'operation upon the 217 and 218, tothe feed rollers. hat, as abovedescribed. v*Secured tothe stud By this arrangement uniform pressure is shaft 214 on which the roller 202 is mounted placed on both bearings ofthe upper kroller is Va ratchetwheel l681. V and 'along the line of contact ofthe two upon the extension'ofthe'stud shaft 214 is rollers vand insures uniformfeeding, and if an oscillating arm 6241 Fig. 12) carrying a the paper vshould vary in-`thickness between pawl 626y pivoted upon abolt, as62f, passing therethrough, the pawl'626 beingV positioned to engage the ratchet 681. Passing alignthre'aded portion of the'rod 228 is engaged nut 229, the hollowportion o y 'ment the vshaft 225'.'

otherv the' shoulderk of the tubularn'ut 22 is la compression'spring230. By' adjustment the rollers the thicker side ofthe kpaper upward'anc increased pressure is transmitted Vto that 'part of the roller in contactwiththe thinner i .part of the paper.

sion 624a' of the' oscillating arm 624 1s a j hen lthe pressureJ a y justment is properly madeby means of the 'f of :whichis a roller661=which rests upon a'rv Freely mounted bef i ieo This shortens fthel y through an elongated opening 1nv anextenr plunger rod 658.` The rody 658 1s pivoted at y d .659 to a rod 660. atthe lower extension .y

y bracket 680 secur mounted in avbearing 674 which isa part 1s secured a gear 240 supported in any suit-4 the rod 660. Between the bottom of the geared together as are rollers 202 and 203 by ed toy the lower pad arm 8. for the setting'of the castings 204 in proper s the pads oscillate in opposite directions alignment and rangle as already described. the roller 661 moves back and forth along To the other end of the flexible shaft 239, the bracket 680. The rod 660 is slid-.ably preferably with a slidable key connection,

of or is rigidly secured in any manner to the able manner which is in mesh with a gear upper oscillating arm .7. The rod 660 is 241 secured to the shaft 242 upon which the prevented from revolving by the engagedelivering roller 201 (Fig. 10) is mounted. mentof a'pin 671 with an elongated slot in The rollers 200 and 201 are preferably bearing 674 and the forked roller support gears such as 235 (Fig. 11) as before men-v 2 is a spring 673 which tends always tov tioned. The gearing is such that the shaft n move the rod 660, and hence rod 658, down- 242 on the delivering side revolves at the Wardly.V Adjustablyfastened to the plunger Vsame speed as the shaft 214 of the winding rod 658-is a collar670 which maybe placed side, or in such proportion to the speed ofv so leither below or above the projection 624z of the winding shaft as are the diameters of the army 624. lVhen it is placed below the the delivering and winding rollers, so that projection 624a and the arm 7 moves toward the same peripheral feed takes place on each the arm 8 at the beginning ofthe operation side.

upon the hat, the collar 670 contacts-with I prefer that in the construction just deq; the projection 6242 and the arm 624 and the scribed,ywhile in theory the exact same peripawl 626 are thrust upwardly relative to pheral speed is required on the delivering as the ratchet .681 causing the ratchet 681' to on the winding side, to have the diameters revolve andhence the rollers 202 and 203. of the delivering rollers slightly smaller When the collar 670 is placed above the prothan the diameter of those on the winding. ,no jection 624' and the pawl and ratchet are .side to insure that the feeding of the paper .n reversed, the feeding will be done when the 1s always a slight amount more than the dearm 7 moves away from the arm 8. A check llvering amount, which insures that the pawl 629 is mounted in any suitable manner paper will be kept taut and the small upon the pad arm 7 and the two pawls may amount of slipping that would be necessary g5 e connected by a spring 655 which serves to will occur more easily when the delivering f holdboth pawls always 1n engagement with rollers. are at all times in motion.

the ratchet 681 and also to swing the pawl aking up now the support forthe sand 626 and-the arm v624 back to normal position paper rolls 500 (see Fig. 1) from which the after the arm 7 has moved'toward the arm 8 sand paper strip is fed, as above described, m0 again. The amount of rotation of the rollers across the pad faces 15 and 16, referring to Y 202 and 203, and hence the amount. of feed Figs. 14 and 15, lthe sand paper roll 500 is of the sand paper, may be regulated by adfreely supported on a rod 252 which has its justment of the position ofthe collar 670. bearings in a bracket 253 which is slidably After the paper is threaded through the and freely supported in a bearing lug 254. m5 delivering rollers 200 and 201. (Fig. 10) The lug 254 is pivoted at 251 to an arm 250 around the `pad facef15 into the winding which is. secured to the stationary machine rollers 202 and 203, the Vwinding rollers are frame 1 many suitable manner, as shown in just described, and through their frictional 500 changes in diameter as it is being used, gm contact the paper isdrawn over the face of provision is made 1n the mounting so that the pad against the slipping friction of the the delivering or take-off side of the sand kbearings in which the rollers 200 and 201 paper roll automatically shifts to maintain rotate, and becauseof the soft yielding pad its position substantially tangential to the face which yields under the tension of the rollers 200 and 201 on the receiving side 115 taut paper the feeding will be more or less of the pad. Fastened by screw 255` (Fig. jerky. This offers but fewV practical disad- 15) to the rigid arm 250 is a stationary arm vantages, but Iprefer to have thefdelivering 256 which is so placed as to be on a line rollers under power feed in unison with the tangent preferably to both rollers 200 and driving of the winding rollers. Referring 201. Between the end of the arm 256and me to Fig. 13, there is shown amechanism by any point on the free oscillating arm supmeans of which' the delivering rollers 200 port 253 is a tension spring 257. The

' and 201 and the winding rollers 202 and 203 spring 257 draws the roller 500 as its dishaft y214 carrying the roller 202 1s secured 256, thus maintaining the delivering side of 1..

are driven in unison. To the driving stud ameter decreases against the alignment arm a bevel gear 236 whlch engages with a gear the roll 500 always in proper delivering 237 supported Vin any sultable mounting, as position and causes sufficient friction on the 238, secured to the pad arm casting 7. To paper roll to prevent it from unrolling too this gearis fastened a flexible shaft 239 or rapidly. The pivotal support through the othersuitable adjustableconnecti'on to allow lug 254 permits the roller 500 to be posiwie 4partalre otl the oscillating movement 'o the amount ot its sides, and since the across Y :"3 mounted on the Ascribed with regard to will be described throughout.v

ing roll 6,00 is tioned so that the plane ot the paper corre sponds with the plane of the rollers 200 and 201. Thus the supported above the pad and does not the arm T, pad 15, and .therolleis 200 Q01 mounted thereon. lt requires but a slight loosen-ess in that part of the paper between the delivering rollers 200 and :201 and the sand paper supply .roll 500 to allowlfor the pad oscillations the looseness'will only be oli difference between the altitude of very acute triangle and the base of this trionly about one inch, which isthe the altitude can be made any desired practical distance, the looseness ofthe paper is practically negligible.v ln thisrway there is notendency. to tear the paperror allow it to becomebentor creased which would' disturb some ofV the sand' paper particles. f I

As describedv above, a sandl paper strip is drawn from a stationary supply roll 500, between a pair of feed rollers 200 and 201, the face of pad 15 or 16, between a pair ot rollers 202 and 203, and the' end passes out at the top of the casting e v(Fig. 10) as at 23e, and is torno along a sharp edge Q04?. ln Fig. 16 there is showna con:-

angle is amount et oscillation, and

- struction in which the two feed rollers 200 and 201 ot'Fig. 10 are omitted and their places vtaken by an idler guide roll 24:6a mounted upon a casting 247 securedto the' pad arm 7 in the same manner as above de scribed with regardto thevcas'ting '2011- ot rollers 202i Figs. 10 and 11. The receiving described and 203 act in the same manner .as with regard to Fig. 11.r roll 500 maybe vsupported in anysuitable manner, tothe trame of themachine as Figs.

as shown in Fig. 1, Vor .it may upon pad arm hereinafter described.

Turning again to grammatically Vshown theV sand paper to pads sists in tee-ding the same `from a supply roll v500 .over an'idler' 501,A across the pad ace, over, an idler 601,7andonto a'receiving roll 600, or vice versa,

has been de be mounted Fig. 9,there is .dia-

. pad its movements. 'The feeding arrangement for both pads and themountingxof the rolls are substantially thel sainelso ,n by means tobe delscribed later. and pulls thev paper across the pad tromthe delivering roll 500;

1ieferringftohig. 17, tnere iissliowvri ai,

partial'sectionalview ofthe delivering roll is OO'and its mounting on thepad arm 7.

paper roll 500 is 'stationarily 7 stud! 504el and is locked in length cular crossjstud 515- f bination, of adjustments on or crossibrace l515 everyv possible direction for the roll supportA The sandpaperf as in stationary position"secured 14 and 15, and*4 proper 7 in ainanner. such as will bev a means ofapplying` 15 and 16 which-con-` the supply: rollf both Y that one only The receivthe vsupporting stud/l which isr shownr morec'learlyin Figs. 3,4 and 5 in its position on thepad Varms 7 yor 8. Referring again to1 19, adjustably .tasteiicd near the endet the stud 50% is a clanip which isadiustablef lengthwise ot or around the place bya clamp screw 2505.5 This' `clamp 'has a circular stud 53eab which isfengaged in secondary clamp which is adjust# able around the axis .5f-ea and'is clamped in 'place by 'a screw 536.V rl`he 538 has a second opening `'passingthrough it at right angles tothe one?receiving the stud 534a in which is adjustably securedfai cir- (see Fig. 17), which acts as aseparator and! brace for. the v.two side castings 512and' of the. roll and'is locked by a clamp screw 537. This comaround the stud 504, onor laround the axis Vof the circularv extension 534%, and on or around the gives an adjustment in mechanism or complete universal joint, so that it may be properly positioned to Vdeliverfthe paper strip correctly to the, parl l5'orto properly receive it from the pad andl wind itr evenlyY no matter what the angle-oi the sides of the pad may be. l This univers al A mounting-iis delivering" roll 500 andthe receiving roll The guide roller'501 passes through .openings in lugs'fand 530 of the Vside' cast ings 512 and 513respectively (Figs. 18 and 19).` In this c'onstructionthe guider roller V501'is placed parallelto the airis of the paper rollr500 andiin'thev sameplane so' angle andv at from `the iace of 1 the pad 15 theroll V500 will deliver or receive the paper properly. lt is understood, liowever, that either the .delivering ory thel winding roll ymay be .placed the pad yarmi the roller 601 kmay n be'A .made independently adjustable backward'or forward or at any angle tothe: I roll 500 or 600 sov that they y in any desired .position on casting, .and the rollery 501 or as idlers or guiderollersv for the paper.

The spool 540uponwliiolithe sand paper strip is mounted is hollow,'as"shownin Fig. 17, and has ittedinto its endsga pairfof bushings 521 and 52??"through which pass a 'rodf541 vupon which kthe spool ismounted and revolves. 'A thumb screw 516"pro\'7ides` for the ready.reniovaloflthe rod `511:1 kto vpermit removal ofthe spool 5410. Fitted against the'iniier surface ofthe: endfbraclret 513 is a by anv opening employed. both in the vi60V i thatwhen'the guide roller 501 k:set attheV the proper distance l-liO will simply act` f' dislfl'ecrotatablymountediipon a hub 513a vot-theb raclnet 513-. ot'proj ections 511ia *fillhetlislr 514;,has a pair' lwhich engage -a diametmentioned, the

y rical slot 523a '.friction, in'Figs. 21 and 22 Y roller 601, and is wound ing Lroll 60O1(Fig. 9).*v

ofthe bushing 523 (see Fig. 20) so that any movement of the spool 540 about its axis 541 causes movement of the disk 514. VIt will be understood that since the roll 500 is delivering the sand paper there will be a tendency for itv to revolve too rapidly and thus cause a looseness of the paper. Therefore, means must be employed to restrain the rotation of the roll. Surrounding the friction disk 514 and secured to or-part ofthe casting 513 is a friction band 517Vwhich'` tends to spring outwardly and may be tightenedV more or less in its Contact with the outer surface of the disk 514-fby means of a clamp screw 524 and spring 525 (Fig. 19) to 'serve as a restraining brake. f

The larger. the delivering roll 500, the more friction is required to Yhold the paper from loosening or the roll unwinding; and the smaller the delivering roll becomes, the lesser the arm of force that is worked against it,and the friction between the band 517 and the friction disk 514 should be decreased. In order to maintain the proper there is shown a mechanism for'automatically adjusting the screw 524 of Fig. 19 consisting of a small bevel gear 526 engaging with a secondary bevel gear 527 which is adjustably fastenery to a shaft 527 a by a screw 532. To the other end of this shaft 527 1 is adjustably fastened a collar 531 and an arm 528, part of the arm 528 resting on the surface of the paper roll 500. This arm is normally kept in contact with the surface of the paper roll by a spring 530. When the delivering roll 500 is first inserted in the machine, the arm 528 will be swung upward, as shown in dotted Y lines innig. 22. As the roll is unwound, the arm 526 throughthe action, of the spring v530 will follow the decreasing diameter of the roll'and through the `shaft 527a and gears 527 and 526 will turn the 'clamp screw and lessen the pressure of the band 517 against the friction disk 514. The adjustable mounting of the gear 527, as by the screw 532, allows the turning of the gear without affecting the position of the shaft 527CL in ordery that the proper tension may be placedon the friction band when the roll is full sized, and the arm 528 is so curved that its contacting points with thev roll will bring about vthe proper decrease in friction Vbetween the band f 517 and the friction disk 514 to suit change in diameters. i v

In this particular construction, as has been paper isdrawn from the rdelivering roll 500, over the guide roller 501, over the face of pad 15 or 16, over the guide on al driven receiv- Referring now to Figs. 23 and 24;, the receiving ,roll 600`is mounted universally lsubstantially as described with regard tov lthe delivering roll 500 to permit its proper alignment with the side of the pad, and its two side brackets 606 and 620 are braced by a rod 602, the guide roller 601 being mounted on a shaft 604 between the two side brackets. The end of the sand paper strip is locked in a slot of the winding spool 607 similar to the manner in which a camera film is engaged by the winding spool of a camera. The winding spool y607 is made tubular with two bushings 645 and 646 fitted into its ends, the bushing 661 having ak free fit on a remova square opening through which the square portion of the shaft 610 passes. Thus, when the shaft 610 is revolved, the winding spool 607 will also revolve and the sand paper will be Vwound thereon.

Freely journaled in the casting 606 is the hub 611a of a worm wheel 611 and the wheel 611 is removably held in place as by a clam 618 secured to the casting 606 (Fig. 24). Fastened to the side of the worm wheel 611 is a spring-actuated pawl 612a, the spring being shown at 614, and freely mounted on a projecting hub on the side of the worm wheel 611 is a ratchet 612 which is .kept in place by a pair of overhanging projections 615 which are secured to the face of the worm wheel 611 by screws as shown. The ratchet 612 is thus free to revolve relative to the worm wheel 611. The right-hand end of the shaft 610 has a iiange .610% shown more in detailin Fig. 27. As a part of the ratchet 612 and hollowed out are shown two projections 612k, clearly shown in Fig. 25, between which there is a slot slightly wider than the elongated flange 610a on the drive shaft 610, and the undercut is such that the flange projection 610f*V on the shaft 610 will pass under theprojections 612). rlhese projections, therefore, prevent the shaft from sliding to the right and out of place. In these projections 6121D are two pins or stops 613 so placed that the sides of the flange 610EL will contact with them, and the shaft 610 will be prevented from taking a full revolution relative to the projections 6121). Any movement, therefore, of the ratchet to the left because of contact with the pins 613 against .the shaft flange 6.10l will cause the shaft 610 to revolve and with it the winding spool 607.

"In order to start the winding of the on the spool 607 or to take up any looseness vof the paper it is desired to provide a manual means for winding. Referring to paper Figs. 25, 26 and 27, a key 635 is provided Vwlnchfits over the end the slr-ift 610 and is provided with a pin h' adapted 2S), the collar 642 conta the other end et which passes freely through a svivelled bushing 648 in an arm 6M which is si felled in a small projection 647, shown a Fig. secured to the stationary machine frame The swivel arrangement is `made necessary because oit' the oscillating movement of the pad arms 7 and 8 on which ythe kabovedescribed mechanism is mounted and also because arm 7 at the end of the operation moves upward in relation to arm 8 and to all st tionary parts. Vfhen the pad arms 7 and 8 oscillate and carry with them the feeding mechanism, the rod 641 slides backward and forward in its free bearing in the bushing 611-8. Adjustably psiticned on therod 641 is a collar 642 locked in position by a set screw 643. As the rod 64,1 moves'with the pad arms 7 and 8 and the feeding mechanism to the right (Fig. ts with the end of theabutment arm rlhis Will stop the movement of the rod Geil in relation to the abutment 64A which is stationary and Will cause the collar 637 to push the oscillating arm 682 and its paivl 6,26 toward the left about its axis 630. Upon the return of the feeding mechanism to the left, the collar 651 and the shock spring 652 cause the arm Y6&1 to be pulled to the left and returned to normal position. It Will follow, therefore, that the amount of oscillationgiven to the arm 682 will depend upon the lposition in which the collar 6112 is placed and its position may accordingly be adjusted to suit the amount of paper desired fed With each oscillation of the pad arms. The sWivelled bushing, 648 is stationarily secured to the trame of themachine andtherefore does not partake of any movement oi' the pad arms; and when the arm 7 is moved upward in relation to the arm 8 after operation upon the hat, the feeding mechanisnrj'ust described also moves upwardly yand the shaft Gfil is thrown at an angle, and the collar 6422 is'dra-Wn upwardly so that in the movement of the arms the collar 642 does not come into contact Withthe abutment 6/ andthereiore the feeding ceases.

The feeding of the plished by vdispensing With the contact With a stationary part, 64A-, by a device such as isshown in Fig. 31. The movements of the osciilrftiugv arm may be brought about by the action fof its oWn inertia. As the roll 600 and the feeding mechanism oscii re with the pad arms, the arm 682 will ose ate about its axis due to itsinertia and will strike alternately against stops 606a and 606b which are secured to 606 oi Figs. 23 and 24. By adjustment Vof a screw 609 and a check nut 608 (Fig. 31)

the length ofthe oscill and therefore the amount of paper fed nach oscillatioinimay be .fith regulated. -lnthis p the roll to prevent paper may be accomwith a dii'lerent the bracket Y ations of the arm y682,A

f rod 73 passing up instance an arnA pad arm 8 (not extension 30a of ti in an enlarged to act as .c g f upwardly in i t, mecnanisr draws the arm over and holds it there, althou may continue to oscillate ing oi the paper ceases.

lin the above-described sand paper feed driving mechanism described With regard to Figs. 28 to 31, the feed occurs at each oscillation of the pad arms 7 and lt is preferably, however, and necessitates less gearing to reduce the drive to have the fee(r of the sand paper occur either at the beginning or the end of the operation upon the hat when the arm 7 moves toward or away from the arm 8. A mechanism of this nature has already been described with regard to Figs. L1 and 12, wherein the sand paper strip is across the pad and then torn oif without being Wound on a receiving roll. In Fig. 32 is shown a similar mechanism applied to rotating. a receiving roll 600 and its action may be readily understood by reference to the description or Figs. and 1l since the same reference numerals have been used to indicate the similar parts. lVith this latter construction, if desired, the Y Worm 619 and the Worm Wheel 611 may be eliminated as the reduction of movement is not required that is made necessary when the ratchet Wheel 627 moves with every oscillation or" the pad arm. rlhe axis of the ratchet 627 may coincide With the axis of the receiving roll 600.

With regard to the mounting of the sand paper roll 500 upon the pad arm in the position shown in Fig. 10, the roll is preferably mounted in a universal mounting upon the stud 504i of the pad casting 7, as

position oscillates its unwinding too rapidly. This may be accomplished by the use ofa brake arm 2de (Fig. 10) pivoted upon the casting 204, as at 246, and drawn the surface or' the roll, as by a spring 245. In Fig. 16 the roll 500 is shown provided form of brake, as 248, axis of the roll and held Y of the same by a .spring mounted upon the against the surface 249.

Referring' now to F 33, there is shown a perspective View oi' a brim-pouncing machine equipped with manual means for separating the arms 7 and 8 in place of the automatic separating mechanism above described With regard to Figs. 7 and o. rlhe through the tubular bearlOS 

